| 摘要 |
Method of lighting intensity automatic adjustment and corresponding device, in which the light emitted by a light unit is adjusted according to the input signal from a passive infrared motion sensor and/or a dusk sensor. In one embodiment, starting from a stand-by condition in which the lamp unit is switched-off, the light from the lamp unit is smoothly brightened up to 100% of its maximum power in case of detection of a motion from the motion detector and in case that also a dusk condition is detected by the dusk sensor.
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